Buying a home in Castel San Niccolò
2,517 residents at the 2021 census, 3,513 buildings and 83.3 km² of territory, Toscana.
Castel San Niccolò is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 35.1% of the territory of Castel San Niccolò has high or very high landslide hazard (P3 and P4), with 46.2% of the residents. 1.8% of the territory of Castel San Niccolò is in the flood area of the medium-probability scenario (P2), with 15.9% of the residents.
Find your address in Castel San Niccolò
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Castel San Niccolò compared
| ISPRA indicator | Castel San Niccolò | AR | Toscana |
|---|---|---|---|
| Landslide, very high hazard (P4) | 1% | 3.4% | 4.6% |
| Landslide, high hazard (P3) | 34.1% | 14.3% | 16.4% |
| Landslide, areas of attention | 0% | 0% | 0.6% |
| Residents in landslide areas P3-P4 | 46.2% | 5.6% | 5% |
| Buildings in landslide areas P3-P4 | 61.3% | 8.9% | 8.1% |
| Flood, high probability (P3) | 0.5% | 2% | 6.2% |
| Flood, medium probability (P2) | 1.8% | 6.7% | 12.2% |
| Flood, low probability (P1) | 2.8% | 11.9% | 21.2% |
| Residents in P2 flood areas | 15.9% | 12.1% | 25.6% |
| Buildings in P2 flood areas | 10.2% | 8.6% | 22.2% |
Questions
Which seismic zone is Castel San Niccolò in?
Castel San Niccolò is in seismic zone 2: in this zone strong earthquakes are possible.
How much of Castel San Niccolò is in landslide class P3/P4?
According to ISPRA’s mosaic, 35.1% of the territory of Castel San Niccolò has high or very high landslide hazard (P3 and P4), with 46.2% of the residents. By share of territory with landslide hazard P3-P4, Castel San Niccolò ranks 7th of 36 municipalities in the province of Arezzo.
How much of Castel San Niccolò is in flood scenario P2?
1.8% of the territory of Castel San Niccolò is in the flood area of the medium-probability scenario (P2), with 15.9% of the residents. By share of territory in the P2 flood area, Castel San Niccolò ranks 24th of 36 municipalities in the province of Arezzo.
Guides: seismic zone · landslides and floods · what to check before an offer. OMI prices: GEOPOI (how to read them).
Nearby municipalities
| Municipality | Seismic zone | Landslide P3-P4 | Flood P2 |
|---|---|---|---|
| Montemignaio | 2 | 51.8% | 0% |
| Ortignano Raggiolo | 2 | 37.5% | 4% |
| Reggello | 3 | 32.3% | 6.5% |
| Pratovecchio Stia | 2 | 35% | 0.6% |
| Poppi | 2 | 33.3% | 4.9% |
| Castel Focognano | 2 | 35% | 5.6% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on